Re: ACPI with AMD64
powernow is working without problems (processor is switching between
1800MHz and 1000 MHz):
Only switching between power states C1, C2, C3, .. (which is a
different thing than cpu scaling) isn't available.
I have a ASUS A8N-Premium Motherboard, powernow is enabled.
Can you post the output of
At 13:19 10.02.2006, you wrote:
Thimo Eichstaedt (email@example.com) wrote:
> Hi folks,
The CPU does support powesaving, but does the BIOS?
Which motherboard do you have, and do you have powernow/cool'n'quiet
enabled in BIOS?
> I have an Athlon AMD 64 3000 MHz and want to use its powersaving
futures. Therefore I am using PowerNow with the powernow_k8 module.
This is working
> Additionally it should be possible to profit from the power
states of the processor (C1...C8). But the ACPI module tells me
that only C1 is availabe:
> Modules loaded: processor, powernow_k8, cpufreq_userspace
> dmesg output when loading processor.ko module:
> ACPI: CPU0 (power states: C1[C1])
> cat /proc/acpi/processor/CPU0/power:
> active state: C1
> max_cstate: C8
> bus master activity: 00000000
> *C1: type[C1] promotion[--] demotion[--]
> cat /proc/acpi/processor/CPU0/throttling
> <not supported>
> Is this correct or what have I done wrong ? Can anybody with a
AMD64 processor perhaps post its proc output ?
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